The word "singer" is gender-neutral and can be used to describe someone of any gender.
Perhaps you are thinking of a specific context where there might be a distinction between male and female singers, such as "tenor" (male) and "soprano" (female).
The word "singer" is gender-neutral and can be used to describe someone of any gender.
Perhaps you are thinking of a specific context where there might be a distinction between male and female singers, such as "tenor" (male) and "soprano" (female).